Police arrested him Christmas Eve outside his mother’s home. Police said he was carrying two hunting knives, one with blood on it, and two pocket knives. There was blood on the back seat and seat belt of Betty’s Ford Taurus. Prosecutors said Robert Wallace also had blood on his coat. Blood was also found inside the home.

Authorities said Betty Wallace had multiple stab wounds to the legs and sustained blunt trauma injuries to her face.

“(Betty Wallace) had multiple lacerations on her face, stab wounds to her body and face. Her head was so badly caved in and missing several teeth,” assistant state’s attorney Jamie Santini said.

Robert Wallace has allegedly been violent with his mother in the past. In August, prosecutors said Robert Wallace slashed his mother’s face.